Embroidering attachment for sewing-machines.



Patented Dec. ll, I900;

.1. GRUBMAN. EMBRUIDEBING ATTACHMENT FOB SEWING MACHINES.

(Applicatian filed my 29, 1900.

2 Sheets-Sheet l.

(No llodaL) WITNESSES rm: Nonms PETERS co. move-Limo WASHINGTON, n. c.

No. 663,752. i Patented Dec. ll,fl'l900.

' v JIGRUBMAN.

EMBBOIDEBING ATTACHMENT FDR SEWING MACHINES;

(Applicatiog filed m 29. 1900.;

2 Sha'ets-Sheat 2.

(Nb Nodal.)

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JOSEPH GRUBMAN, OF NEW YORK, N. Y.

SPECIFICATION forming part of Letters Patent No. 663,752, dated December11, 1 900. Original application filed March 16, 1900, Serial No. 8,169.Divided and this application filed May 29, 1900. derial No.

To all whom it may concern.-

Be it known that I, JOSEPH GRUBMAN, a subject of the Czar of Russia,residing in the city of New York, borough of Brooklyn, in the county ofKings and State of New York, have invented a new and ImprovedEmbroidering Attachment for Sewing-Machines, of which the following is afull, clear, and exact description, this application being a division ofthe application for Letters Patent of the United States, Serial No.8,169, filed by me on March 10, 1900, and patented August 28, 1900, No.656,967.

The object of the invention is to provide a new and improvedembroidering attachment for Bonnaz or other embroidering or sewingmachines and arranged to intertwine or otherwise arrange embroideringmaterials-such as braid, chenille, tapes, cords, bands, or the like-uponthe fabric to be embroidered.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement as applied to a Bonnazmachine, the

fabric-feeder foot being shown in section. Fig. 2 is a reduced frontview of the needle, the needle-bar, and the nipple, with theembroidering materials in place. Fig. 3 is a transverse section of thesame. Fig. 4t is a rear elevation of the improvement. Fig. ois an endView of the same. plan View of the same on the line 6 6 in Fig. 1. Fig.7 is a sectional side elevation of the embroidered fabric, and Fig. 8 isa plan view of the same.

The improvement is shown appliedto a Bonnaz sewing-machine having theusual hookneedle A secured to a reciprocating needle-bar A and operatingin connection with a looper (not shown) to sew by chain or other stitchB the two embroidering materials B 13 upon a fabric B in intertwined orsinuous fashion, is plainly indicated in Figs. 7 and 8, said fabricbeing moved over a Fig. 6 is a sectional table 0 in the desireddirection by a feeder D, forming part of the usual universal feedmotionof the sewingmachine. The needle A passes through a reciprocating nippleE, having a tubular shank E and a grooved collar E engaged by the fork Fof a vertically reciprocating driver F, mounted to slide on the head 0of the sewing-machine frame. The embroidering materials B B extend alongthe needle-bar A inside of a needle-bar carrier G into the shank E andpass through an opening E therein (see Figs. 2 and 3) and through a slotin the sleeve H, which carries the embroidering-material carriers orfeeders I 1, respectively, for intertwining or other wise laying thesaid materials on the top of the fabric B adjacent to the needle A, asis shown in Figs. '7 and 8 and as hereinafter more fully described, itbeing understood that the said sleeve H and the carriers or feeders I 1form essential parts of the attachment, the sleeve being mounted to turnin suitable bearings 11' on the head 0 and turning in unison with theneedle A and the cloth-feeder D by the action of the needle-bar carrierG.

The carriers I I are alike in construction ,and are located one in frontof the other and are made in the shape of depending arms fulcrumed atthe upper ends at I to the sleeve H and spaced apart at their lowerportions, which are bent somewhat inward toward the lower end of thenipple E and the needle A to swing in front of the same and alternatelyfrom one side to the other to inter-twine or otherwise fashion theembroidering'materials B B as indicated in Figs. 7 and 8, while thestitches B of the needle A secure the intertwined loops of the materialsin place. The lower spaced-apart portions of the carriers I I are formedwith large openings I 1 respectively, for the passage of theembroidering materials B B from the slot or opening in the sleeve H tothe front of the carriers I I and down into and through guideways in theform of eyes I 1, extending lengthwise at the extreme lower ends of saidcarriers, as is plainly indicated in Figs. 1 and 5.

The upper or pivoted ends of the carriers I I are provided with angularslotted camarms I I in which operate triangularly shaped cams J J,respectively, extending in opposite directions and secured to one end ofa cam-shaft K, journaled in suitable bearings on the sleeve H, as shownin Fig. 6. The cam-shaft K carries at its other end (see Fig. 4) astar-wheel K, pressed on by the free end of a flat spring K secured tothe sleeve H,

so as to hold said star-wheel and the camshaftKagainstaccidentalturning.Thestarwheel K is adapted to be engaged by a pawl L, pivoted on a slideL, secured on the reciprocating nipple-shank E by a set-screw E so thatwhen the nipple rises the pawl engages a tooth of the star-wheel K andturns the latter and the cam-shaft K accordingly, and during themovement of the reciprocating needle-bar A the shaft K remains at astandstill. The pawl L is pressed on by a spring L carried on the slideL, and the outer swinging movement is limited by a stop-pin L operatingin aslot in the slide, as indicated in dotted lines in Fig. 4.

As shown in the drawings, the star-wheel K has four teeth, so thatduring four full strokes of the nipple-shank E and the nipple E thecam-shaft K is turned around once, and consequently the camsJJimpart twoforward and backward swinging motions to the carriers I I to intertwinethe em broidering materials andsccure the same in place by the stitchesB, as above described and shown in Fig. 8, one stitch B being within aloop and one passing over the intersection of the embroideringmaterials. By reference to Fig. 8 it will be noticed that eachembroidering material extends in a sinuous or wavy line and alternatelyon opposite sides of the row of stitches.

Now when the machine is in operation and the cam K is intermittentlyrotated from the slide L and its pawl L operates in conjunction with thestar-wheel K during the re- .ciprocating movement of the nipple E it isevident that an intermittent swinging motion is given to the twocarriers I I, so that they alternately cross their em broideringmaterials and form the intertwining loops secured in place on the fabricB by the stitches B, as above explained. It is understood that when theseveral parts are in the position illustrated in Fig. l the carriers I Iare in the dormant spread-apart position while the needle A makes astitch, and during the next stroke of the nipple and at the time thecloth B is fed forward the cam-shaft K is turned, but the cams J Jsimply change position without, however, imparting a swinging motion tothe carriers I I. On the next downstroke of the nipple E the slide Lmoves with it and the pawl glides over the starwheel K, and on thefollowing upstroke of the nipple'the slide L, with its pawl L, causes aturning of the cam-shaft K and the cams J J, and the latter now impart aswinging motion to the carriers I Ifor crossing the embroideringmaterials while the cloth B is fed forward, the movement of thecarriersceasing seep/ea as soon as they have reached opposite positions.Thus by the construction of the starwheel and the cams the carriersreceive a swinging motion on but every other upward stroke of the nippleE, so that one stitch B is placed over the crossing of the embroideringmaterials and another stitch within the loop formed by the embroideringmaterials, above referred to and shown in Figs. 7 and 8.

The needle A and the nipple E are reciprocated alternately, as is wellknown, and consequently the needle makes four stitches for 'two swingingmovements of the carriers I I that is, to bring the latter back to anoriginal position.

It is evident that the star-wheel K may be provided with more or lessteeth than shown, and the form of the cams J J may be varied to producea different intertwining effect than the one shown in Figs. 7 and '8,and it is also evident that instead of'two carriers only one may beemployed, and in this case the embroidering material appears as asinuous or wavy line and alternately on opposite sides of the stitchesB. In a like manner more than two carriers may be employed for laying acorresponding number'of embroidering materials upon the cloth andsecuring them in place by stitches B.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. An embroideringattachment for sewingmachines, comprising a sleeve mounted to turn, a carrier forembroidering material and pivoted on the sleeve to swingacross the pathof the stitches made by the sewing-needle, a shaft having anintermittent turning motion and provided with a cam for engagement withsaid carrier to impart a swinging motion to the latter, means forturning said cam shaft intermittently and means for holding saidcam-shaftagainst accidental turning, substantially as shown anddescribed.

2. An embroideringattachmentfor sewingmachines, comprising a sleevemounted to turn, a carrier for embroidering material and pivoted on thesleeve to swing across thepath of the stitches made by thesewing-needle, a shaft having an intermittent turning motion andprovided with a cam for engagement with said carrier to impart aswinging motion to the latter, a reciprocating nipple, a

' slide movable on "the sleeve and moving with the nipple, and aconnection between the said slide and thesaid cam-shaft to operate thelatter intermittently from the slide, as set forth.

3. -An embroidering attachment, comprising a reciprocating nipple havinga tubular shank provided with an opening for the passage of theembroidering material, a sleeve mounted to turn and having a slot oropening by which the embroidering material passes from the nipple-shankto the outside of the sleeve, a carrier pivoted on the outside of thesleeve and having an openingbelow the pivot IIO leading to the front ofthe carrier, and a guideway at the lower end of the carrier for theembroidering material and means for swinging the carrier, substantiallyas shown and described. n

4:. An embroidering attachment for sewingmachines, comprising a sleevemounted to turn and concentric with the needle-bar, a pluralityof-carriers for the em broidering materials and pivoted on said sleeve,a camshaft, a reciprocating slide, and means for imparting anintermittent turning motion to the shaft from the said slide, the saidshaft beingprovided with cams engaging the said carriers to impart anintermittent swinging motion to the same, for the purpose set forth.

5. 'An embroidering attachment for sewingmachines comprising a sleevemounted to turn and concentric with the needle-bar, a plurality ofcarriers for the embroid ering materials and pivoted on said sleeve andadapted to swing in opposite directions to cross the embroideringmaterials, a reciprocating nipple, a cam-shaft, means for impartingmotion to the cam-shaft from the nipple, and earns carried by said shaftand adapted to swing the said carriers at every alternate up ward strokeof the nipple, as set forth.

6. An em broidering attachment for sewingmachines, comprising a sleevemounted to turn and concentric with the needle-bar, a plurality ofcarriers for the embroiderin g materials and pivoted on said sleeve, acamshaft, triangular cams thereon and engaging cam-arms on the saidcarriers, and means for imparting motion to the said cam-shaft, as setforth.

7. An embroidering attachment for sewingmachines, comprising a sleevemounted to turn and concentric with the needle-bar, a plurality ofcarriers for the embroidering materials and pivoted on said sleeve, acam-shaft mounted to turn in the said sleeve, triangular cams on thesaid camshaft and standing in opposite directions and in engagement withcam-arms on the said carriers, a star wheel on the said cam-shaft, and apawl for engaging the said star-wheel to intermittently turn the same,substantially as shown and described. v

,8. An embroideringattachmentforsewingmachines, comprising a sleevemounted to turn and concentric with the needle-bar, a plurality ofcarriers for the embroidering materials and pivoted on' said sleeve, acam-shaft mounted to turn in the said sleeve, triangular cams on thesaid cam-shaft and standing in opposite directions and in engagementwith cam-arms on the said carriers, a star-Wheel on the said cam-shaft,a pawl for engaging the said star-wheel to intermittently turn the same,and a slide mounted in said sleeve and carrying the said pawl, the saidslide receiving an intermittent reciprocating movement from the nipple,substantially as shown and described.

9. Anembroideringattachmentforsewingmachines, comprising a sleevemounted to turn and concentric with the needlebar, a plurality ofcarriers for the embroidering materials and pivoted on said sleeve, acam-shaft mounted to turn in the said sleeve, triangular cams on thesaid cam-shaft and standing in opposite directions and in engagementwith cam-arms on said carriers, a star-wheel on the said cam-shaft, apawl for engaging the said star-wheel to intermittently turn the Same, aslide mounted in said sleeve and carrying the said pawl, the said slidereceiving an intermittent reciprocating movement from the nipple,andaspring engaging thesaid starwheel, to hold it and the cam-shaft againstaccidental turning, substantially as shown and described.

10. An embroidering attachment for sewing-machines, comprising a sleevemounted to turn and provided with a slot or opening for the passage ofthe embroidering materials, a plurality of carriers pivoted on saidsleeve and mounted to swing in opposite directions, the said carriershaving registering apertures below the pivot for the passage of theembroidering materials from the slot or opening in the sleeve to thefront of the carriers and means for imparting a swinging motion to thecarriers,substan tially as shown and described.

11. An embroidering attachment for sewing-machines, comprisinga sleevemounted to turn and concentric with the needle-bar, the said sleevebeing provided with a slot or opening for the passage of theembroidering materials, a plurality of carriers pivoted on said sleeveand mounted to swing, and means for swinging the carriers in oppositedirections, the carriers having registering apertures, ata point belowthe pivot for the passage of the embroidering materials from the slot inthe sleeve to the front of the carriers, and eyes at the free ends ofthe carriers for the passage of the embroidering materials,substantially as shown and described.

12. An embroidering attachment for sewing-machines, comprisinga sleevemounted to turn, a carrier for an embroidering material and pivoted onthe sleeve to swing across the path of the stitches made by thesewing-needle, a cam-shaft, a reciprocating nipple, means for impartingmotion to the cam-shaft from the nipple, and a cam on said shaft forengagement with said carrier, the said cam being arranged toimpart aswinging motion to the carrier, at every alternate upward stroke of thenipple, substantially as set forth.

13. An embroidering attachment for sewing-machines, comprising a sleevemounted to turn, a carrier for an embroidering material and pivoted onthe sleeve to swing across the path of the stitches made bythesewingneedle, the said carrier being provided at its upper end with aslotted cam-arm, a cam-shaft having a cam operating in the slottedcam-arm, to impart a swinging motion to the carrier, and meansforimparting an intermittent turning motion to the cam-shaft, as setforth.

ing on the pawl, a stop for limiting the swinging movement of the pawl,and a spring engaging the star-wheel to hold it and the camshaft againstaccidental turning, substantially as described.

15. In an embroidering attachmentfor sew ing-machines, a plurality ofcarriers mounted to swing in opposite directions and having ape erturesfor the passage of the embroidering materials, each carrier beingprovided with a slotted cam-arm, cams engaging the slots of said arms,and means for operating the cams to im part an intermittent swingingmotion to the carriers, substantially as set'f'orth.

' In testimony whereof I have signed my name to this specification inthe presence of two subscribing witnesses.

JOSEPH GRUBMAN.

Witnessesi THEO. G. HosTER, v EVERARD BOLTON MARSHALL.

